Electrode-terminal



A. H. HAEFELE.

ELECTRODE TERMINAL. APPLICATION FILED MAR. 31. 1915.

1,377,127. Patented May 3, 1921.

INVENTOR- W ALBEH "r H.HAEI-ELE By ia ATTORNEY ALBERT i1. HAEFELE, or LAKEWOOD, 01110, ASSIGNoR, BY MESNE ASSIGNMENTS, 'ro NATIONAL CARBON CO PANY, me, A CORPORATION OF NEW YORK.

ELECTRODE-TERMINAL.

Original application filed January 23, 1914, Serial No. 813,928. Divided and this application filed March= Specification of Letters Patent.

31, 1915. Serial No. 18,273.

To aZZ-whomit may concern:

Be it known that I, ALBERT H. HAEFELE, a citizen of the United States, residing at Lakewood, in the county of Cuyahoga and State of Ohio, have invented a certain newand useful Improvement in Electrode-Terminals, of which'the following is a full, clear, and exact description.

This application, which is a division of m Jzi nuary 23, 1914, relates to a battery connector and is particularly adapted for carbon electrodes of dry cells.

It has formerly been the practice to solder, rivet or otherwise fasten a spring clip to the metal cap of a dry cell carbon. The clip and cap are therefore necessarily formed by distinct operations and additional time and labor are required to secure the two together. The voltage of a dry cell is not high and 'it is important to secure a good electrical connection between the clip and. the cap so that there will be no voltage drop in the joint. If the clip is secured to the cap by'rivets or screws a high resistance connection frequently results. Even though the connection is in good condition when the cell leaves the factory, the clip is liable to work loose when put in use which causes a useless waste of energy as well as a low terminal voltage of the cell. Soldered connections are liable to loosen on account of corrosion or electrolytic action and in addition are liable to be knocked off by rough handling. It is the object of my invention to overcome these disadvantages.

In the drawings Figure 1 is a side view of the terminal.

F ig. 2 is a perspective view.

Fig. 3 is a top View.

In the drawings the cap, which is adapted to be applied to a carbon electrode of a dry cell. consists of a cylindrical side or skirt portion 1 and a top portion 2.

In my form of electrode terminal the clip is drawn or struck ,up from the top. of the cap itself so that no rivets or solder is necessary. The cap is preferably drawn from spring brass of appropriate thickness and the connector can be made at the same time or afterward.

The outside hooks or arms 9 are struck from the cap preferably to extend in the Same directlon as shown. The movable application Serial No. 813,928, filed tongue or pressure member 10 is preferably struck in such a way as to have its free end extending in a direction opposite to that of the arms 9.

To give rigidity furrows .or ridges 12 are made in any or all of the three members as shown. This also tends to contract them so that sutficient clearance will be had to permit free movement of the movable member.

The cap after having been formed and stamped with the connector will be driven over a carbon electrode of a dry cell and no further work on the terminal is necessary. To make a connection the'tongue 10 is depressed and a conductor 8 is inserted as shown in Figs. 2 and 8. On releasing the tongue the conductor is firmly held in place.

The improved form of cap for dry cell carbons has no contact drop in the connection between clip and cap, is moreeasily made and cannot be jarred loose by rough handling. Such a connectionhas a distinct advantage overthe old type.

Having described my invention, what I claim is 1. A battery terminal consisting of a cap having a top-and a depending skirt portion, a resilient tongue member struck upfrom the top and having a wire engaging depression, and two hook-shaped members struck from said top one on each side of said tongue, said hook-shaped members each being integral with the top at one side only and adapted to cooperate with the depression in said resilient tongue to engage a conductor when the tongue is depressed.

2. A battery terminal consisting ofa cap having a top and a depending skirt portion, a resilient tongue member cut out of the top integral at one end only and having a. wire engaging depression, and two hookshaped members struck up from said top integral at one end only, said members being located one on each side of said tongue, the integral ends of said hook-shaped members being opposite to the integral end of the tongue members.

top, a sprlng tongue attached to and ex tendlng across the other side of said top,

and hook-shape wire-receiving means attached to and pro ectmg above such'other side of said top and arranged adjacent to and cooperating with said tongue to hold a conductor therehetween.

4. A one-piece battery terminal cap comprising a top, a circular flange depending 5 therefrom, a spring tongue struck up from and extending across the upper side of said top, and a pair of hook-shape spring Wireengaging members struck up from said upper side of said top, said members being disposed on opposite sides of said tongue and adapted to cooperate therewith to hold a conductor therebetween, such top, flange In testimony whereof, I hereunto affix my signature. I

ALBERT H. HAEFELE. 

